A. S. Zeynalov
Federal Horticultural Center for Breeding, Agrotechnology and Nursery, ul. Zagor’evskaya, 4, Moskva, 115598, Russian Federation
Abstract. The research aimed to study the characteristics of harmfulness and nature of damage to fruit crops with a closed root system of O. sulcatus, and to develop effective protective measures to combat it. The work was carried out in 2018–2020 in a greenhouse under the conditions of the Moscow region. The number of beetles was counted using traps (corrugated on one side cardboard 5 cm × 10 cm in size) installed in 20 places on racks between containers. To control the number and harmfulness of adults, the above-ground parts of plants were treated 3 times with an interval of 2 weeks starting from the 4th week after the first beetles were found. The experimental design involved the study of the following preparations: Bitoxibacillin, P (BA-1500 EA/mg, titre not less than 20 billion spores/g) – 40 g/10 l of water; Fitoverm, EC (2 g/l) – 20 ml/10 l of water; Calypso, SC (480 g/l) – 4 ml / 10 l of water; control – water treatment. In all variants, the consumption rate of the working solution was 100 ml/plant. Against the larvae protective agents were applied to the soil once. The experimental design included the study of the following options: Aktara, WDG (250 g/kg) – 8 g / 10 l of water; Fitoverm, EC (2 g/l) – 30 ml / 10 l of water; Vallar, G (40 g/kg) – 50 g/10 m2; Control (water) – 10 l/10 m2. O. sulcatus damaged from 30 to 60% of seedlings of fruit crops in containers, leading to death from 20 to 40% of damaged plants. When suppressing beetles, the highest biological efficiency (100%) was demonstrated by Calypso, SC (480 g/l) at a rate of 4 ml/10 l of water, at the larval stage – a single application to the soil Vallar, G (40 g/kg) at a rate of 50 g/10 m2.
Keywords: insect; weevil; pest; Otiorhynchus sulcatus (Fabricius); protective measures.
Author Details: A. S. Zeynalov, D. Sc. (Biol.), leading research fellow (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.).
For citation: Zeynalov AS [Weevil Otiorhynchus sulcatus (Fabricius) – a dangerous pest of fruit crops in protected ground]. Dostizheniya nauki i tekhniki APK. 2022; 36(4):88-93. Russian. Doi: 10.53859/02352451_2022_36_4_88.